From b9149004d4635c9f875fafccf8f82d59a72166f7 Mon Sep 17 00:00:00 2001
From: Jimmy Kizito <Jimmy.Kizito@amd.com>
Date: Tue, 5 Jan 2021 14:25:23 -0500
Subject: drm/amd/display: Set DPIA link endpoint type
Git-commit: 698d0a6fb7bb9583b02c0ab50cc0dd33d39c9226
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
[why & how]
We will need a way to distinguish physically connected
links and DPIA endpoints.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 ++
drivers/gpu/drm/amd/display/dc/dc_types.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 20b4819b73e4..66182b8c217b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1732,6 +1732,8 @@ static bool dc_link_construct_dpia(struct dc_link *link,
init_params->connector_index,
link->connector_signal);
+ link->ep_type = DISPLAY_ENDPOINT_USB4_DPIA;
+
/* TODO: Initialize link : funcs->link_init */
ddc_service_init_data.ctx = link->ctx;
diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h
index 3c109c805447..15c353c389d8 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_types.h
@@ -955,6 +955,7 @@ enum dc_psr_version {
/* Possible values of display_endpoint_id.endpoint */
enum display_endpoint_type {
DISPLAY_ENDPOINT_PHY = 0, /* Physical connector. */
+ DISPLAY_ENDPOINT_USB4_DPIA, /* USB4 DisplayPort tunnel. */
DISPLAY_ENDPOINT_UNKNOWN = -1
};
--
2.38.1